Improvement in water-filters



I. BEACH.

Water-Filter.

N0. 164,257- Paiemedrunemlas.

UNITED STATES PATENTu GEEIGE.

ISIDOR BEACH, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN WATER-FILTERS.

Specilieation forming part of Letters Patent No. 164,257, dated J une S, 1875; application filed Apri124, 1875.

To all whom t may concern:

Be it known that I, ISIDOR BEACH, of Philadelphia, Pennsylvania, have invented certain Improvements in Tater-Filters, of which the following is a specification:

The objects of my invention are to make an effective lilterin g material, and to construct a cheap filter for attachment to the nozzle of a hydrant, and so arranged as to be readily taken apart for purposes of cleansing or repairs.

rlhese objects I attain in the manner which I will now proceed to describe, reference being had to the accompanying drawing, in which- Figure lis avertieal section of myimproved filter, and Fig. 2 a plan View of the saine partly in section.

A A are the two halves of the easing of the filter, made substantially of the form represented, and provided with flan ges, between which is secured the iltering mediumfB, the edge of the latter being embraced by the rubber ring D for preventing the escape of water. This tlterin g medium consists of a central disk, a, et' compressed carbon contained between two circular strips, b b, of felt, for I have ascertained that by thus compressing the carbon into a solid disk, the effective and rapid clarifying of water can be accomplished with a iiltcring medium of comparatively liinited area and thickness, and that by combining the strips b b of felt with this central disk of compressed carbon, the access of solid im'- purities to and consequent clogging of the disk is prevented, and a serious objection to ordinary lters thus etfeetually obviated.

The carbon may, in order to add solidity to the disk, be combined in equal proportions with metal, to which, while in a molten state, the carbon is added, the composition being cast into disks of the proper size. I prefer, however, to use the carbon alone on account of its simplicity and economy.

In order to prevent the distension of the tiltering medinm by the pressure ofthe water I4 course in its passage through the filteringdisk, in accordance with the amount of impurities which it contains. Thus, when the bars of the upper and lower gratings E E are parallel, as shown in Fig. l, the water can pass through the filter in a straight line; but .if the water is very impure the gratings may be turned until their bars do not correspond with each other, in which case the water passe-s through the filtering medium B at an angle, and is in consequence brought into contact with a more extended filtering-surface.

In order to render the ilterin g medium readilyT accessible I connect the two halves of the casing together by means of clamps F, which embrace the lian ges of the casin g, and are provided with set-screws j' for forcing the same together.

H is a short tube of rubber or other suitable material, the upper end oi' which is fitted to the nozzle ot a hydrant, and is secured to the same by means of a pair of hinged jaws, I, which can beopened and closed by means of a setscrew, i, a similar pair of hinged jaws, J, serving to clamp the lower end ot' the tube to the branch j of the upper half A of the lter.

It will be understood that although I prefer this mode of connection on account of the ease with which it can be attached to or detached from any object, an ordinary screw-coupiin g may be used if desired.

I claim as my inventionl. A iiltering medium composed of a disk, a, of compressed carbon interposed between two strips, b b, of felt, as set forth.

2. The combination-of the gratings E E, liltering medium B, and rubber ring l), with the anged edges of the two halves A and A of the casing, andwith the screw-clamps F F.

3. The combination of the iiexible tube II, with the hinged jaws I and J for connecting the iilter, and a hydrant, as set forth.

In testimony whereof 'I have signed my name to this specification in the presence ot' two subscribing witnesses.

ISIDOR BEACH, Witnesses:

HUBERT HowsoN, HARRY SMITH. 

